HIGHER-STATISTICS MEASUREMENT OF THE BRANCHING RATIO FOR THE DECAY KL0-]MU-MU

被引：12

作者：

HEINSON, AP

HORVATH, J

MATHIAZHAGAN, C

MOLZON, WR

ARISAKA, K

COUSINS, RD

KAARSBERG, T

KONIGSBERG, J

RUBIN, P

SLATER, WE

WAGNER, DL

KINNISON, WW

LEE, DM

MCKEE, RJ

MILNER, EC

SANDERS, GH

ZIOCK, HJ

KNIBBE, P

URHEIM, J

BIERY, KA

DIWAN, MV

IRWIN, GM

LANG, K

MARGULIES, J

OUIMETTE, DA

SCHWARTZ, A

WOJCICKI, SG

AUERBACH, LB

BELZ, J

BUCHHOLZ, P

HIGHLAND, VL

MCFARLANE, WK

SIVERTZ, M

RITCHIE, JL

YAMASHITA, A

CHAPMAN, MD

ECKHAUSE, M

GINKEL, JF

HANCOCK, AD

KANE, JR

KENNEY, CJ

KUANG, Y

VULCAN, WF

WELSH, RE

WHYLEY, RJ

WINTER, RG

机构：

[1] UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024

[2] UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545

[3] UNIV PENN,PHILADELPHIA,PA 19104

[4] STANFORD UNIV,STANFORD,CA 94309

[5] TEMPLE UNIV,PHILADELPHIA,PA 19122

[6] UNIV TEXAS,AUSTIN,TX 78712

[7] COLL WILLIAM & MARY,WILLIAMSBURG,VA 23185

来源：

PHYSICAL REVIEW D | 1991年 / 44卷 / 01期

关键词：

MIXING ANGLES; TOP MASS; KL->MU-MU-BAR; TUBES;

D O I：

10.1103/PhysRevD.44.R1

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

With a significant increase in experimental sensitivity, we have observed an additional 281 K(L)0 --> mu-mu events after a background subtraction of 19 +/- 6 events. Normalizing this sample to the simultaneous observation of the decay K(L)0 --> pi+ pi-, we obtain the branching ratio B(K(L)0 --> mu-mu) = [7.6 +/- 0.5(stat) +/- 0.4(syst)] x 10(-9). Combining these data with our previously published sample containing 87 events yields B(K(L)0 --> mu-mu) = (7.0 +/- 0.5) x 10(-9).

引用

页码：R1 / R5

页数：5

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